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2026 GMC Sierra SLT
VIN
3GTUUDE89TG426863
This 2026 GMC Sierra SLT is listed at $66,302 with 3 miles in Portage, WI.
ABOVE TYPICAL
$2,799 above typical price
Asking $66,302 · typical market price $63,503 · based on 942 comparable same-build listings.
Market Price Range
Below market
$58,126
Typical price
$63,503
Above market
$69,066
Based on
942
comparable same-build listings.
This vehicle:
$66,302 — $2,799 above the typical market price ($63,503)
Market data as of August 16, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 3.0L · V6 · Diesel
- Drive
- 4WD/4-Wheel Drive/4x4
- Made by
- GENERAL MOTORS LLC
Safety
- ✓ Backup camera
- ✗ Blind-spot monitor
- ✓ Lane departure
- ✓ ABS
- ✓ Electronic stability
Safety & ownership
EPA fuel economy (MPG)
City
16
Highway
20
Combined
17
Est. fuel cost:
$2,740/year
Assumes 15,000 miles a year at $3.10/gallon and 17 MPG combined.
Model-level data for the 2026 GMC Sierra from NHTSA (recalls, NCAP crash tests) and EPA fueleconomy.gov, refreshed July 28, 2026.
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Trecek Automotive of Portage Incorporated | Portage, WI 53901 | $66,302 | 3 mi | 2026-06-30 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Trecek Automotive of Portage Incorporated | Portage, WI 53901 | $66,302 | 2 mi | 2026-06-30 |
What would this 2026 GMC Sierra SLT cost per month?
Estimate the monthly payment on a $66,302 vehicle. Move the numbers to match your own loan.
10% down
7.0% is a typical rate for a well-qualified buyer — use your own quote if you have one.
Loan term
Estimated monthly payment
$1,182
per month
60 months · 7.0% APR · $6,630 down
Amount financed
$59,672
Total interest
$11,248
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
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